Here are views of my hard drive setup on my test
bed Z-100 (note the cabling):
The Hard drive here is the Disctron D-514.
Here are a few installation precautions:
* Try to install the new drive alone and boot
to a floppy to run the Winchester Disk Util-
ities. It can be run from another hard drive,
but you would hate to accidently PREP the wrong
drive!
* If the new drive is installed alone, insure
the terminating resistor pack is installed. If
it is the second drive, only install the term-
inator resistor on the hard drive installed last
on the 34-pin connector ribbon.
* Double check that the ribbon cables are
installed per the directions given later. Insure
all connectors are fully seated and that pin one
of each ribbon connector (the ribbon cable may
also have a red edge) is at the correct end of
the connectors on the drive, controller, and
data separator. The 20-pin cable connector can
go to either location on the Data Separator
Card.
* Before running PREP on a hard drive, you must
install the
Format Enable Jumper
on the Z-217
Controller Card. It is located under the power
connector in the upper left corner of the Z-217
Hard Drive Controller, and may be stored any
where along the top row of pins of the VI*
jumpers, when not in use. See the
Software
Programming
section for more on this.
* Check for a programming plug on the new drive
before installation and make a note of the
position of any jumpers. Try this setting first
and if unsuccessful, try the other positions
before giving up.
Hint
: Drive Select (DS) pins may be labeled DS0
through DS3 or DS1 through DS4, if labeled at
all. If this is the lone drive, DS0 (or DS1)
will become drive unit 0 and after programming,
drive E:.
Hint
: Before changing any positions on the
programming plug, install the hard drive
temporarily, boot up the computer, and run
ASGNPART 0:. If the drive is already setup as
drive 0: the drive LED should light. If it does
not, check ASGNPART 1: and even 2: and 3: before
giving up. If the LED will not light in any
position, check the cables for an improper
connection and finally try a different position
on the programming plug.
Note
: If partition info is displayed after
running ASGNPART, do not proceed with PREP until
you have tried other options. For example:
- Try running ASGNPART X:(Partition name) E:,
where X: is the drive unit number. Then do a
directory listing on E:.
- Try running DETECT or VERIFY to see how many
bad sectors are found.
- Try reformatting the partition with FORMAT to
isolate those bad sectors.
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